Machine for laying off patterns on and otherwise preparing boards for the manufacture of piano and organ keys.



001.040.260. f PATENTED JAN. 1, 1007. l P. S0HNEIDER. A

MAcHINE PORLAYING oFF PATTERNS `0N AND 0T HBRWISE 130013500100 N0 000010KEYS.

BOARDS FOR THE MANUFACTUROF PIANO A APPLIUATIQN FILED APB.28, 1906.

nl s Nakms Ps1-sns ca., wAsHlNcruN. D. c.

PATENTED- JAN. l, 1907.

P. SCHNEIDER. PATTERNS'ON AND OTHERWISE PREP ARING MACHINE PoR LAYINGOPP KEYS.

6 SHEETS-SHEET 2.

BOARDS'POR THE MANUPAGTURE OP PIANO AND ORGAN PPLIGATIoN FILED APB.28.1906.

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-rnz Nonni: PETERS co., wAsHlNaroN. u. c.

No. 040.260. PATENTED IAN. 1, 1907. E. SCHNEIDER. MACHINE TDR LATINE DEEPATTERNS 0N AND OTHERWISE EREPARING BOARDS FOB. THE MANUFAG'IURE 0FPIANO AND ORGAN KEYS.

l ATP'LIDATIDN FILED APE.za.19oe.

B SHEETS-SHEET 3.

.M W I 47. M n m 0. .wf 40 u I "PATENTED'JA-N. 1, .1907.

.1. SCHNEIDER,- Y 'PATTERNS QNAND OTHERWISE PEEP BOARDS EOE. TEEMANUEAGTUEE 0E PIANOANDVOEGAN MACHINE EOEEAYING OEE v AEING.. KEYS.

APPLICATION FILED APB. 28,1006.

5 SHEETS-SHEET 4 G 0 0 0. ICF 0000.000000 boeueoaoueeaeo 0Wwuvokbwoooodeo QIOBIOGOOG..\NIVO00.0.3.000

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No. 840,200. EATENTED JAN. 1', 1907'.v

l E. SCHNEIDER., Y MACHINE EOE LAYING OEE'BATTEENS 0N lNND OTHERWISEPEEPARING BOAEDSEoE THE MANUEACTHEE 0EPIAN0 'AND OEGAN KEYS.

`AEPL10ATI0N FILED 113.215,1900. Y

- E sHEETs-SHEET 5.

c weiden' 1HE Nonms Ps1-sns co.. wAsmNcroN, D. c.

UNITED STATES I PATENT OFFICE.

PHILIPV SCHNEIDER, OF CHICAGO, ILLINOIS.

MACHINE FOR LAYING OFF PATTERNS ON AND OTHERWISE PREPARING BOARDS FORTHE MANUFACTURE OF FIANO AND ORGAN KEYS.

VApplication led April 28, 1906. Serial No. 314,236.

.To @ZZ whom, t nca/y concern:

Be it known that I, PHILIP SCHNEIDER, a subject of the Emperor ofAustria-Hungary, residing at Chicago,in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in a Machinefor Laying OE Patterns on and Otherwise Preparing Boards for theManufacture of Piano and Organ Keys, of which the following is aspecification.

As is well known to those skilled in the art to which my inventionpertains, convenience of manufacture and perfection of result requirethat keys for pianos and analogous instruments shall be made frommaterial which is first produced in the form of a broad continuous boardand that such boards of evengrained and well-seasoned material must bemarked off so that the principal' dividinglines and lines for thecross-cuts at the end of the short levers or Sharps may be indicated forthe guidance of the workmen in dividing the boards and cutting the endsof the short levers.

In an application, Serial No. 286,001, for Letters Patent filed by me onthe 6th day of November, 1905, I have shown and described certainimprovements in machines for laying 0E patterns on boards for themanufacture of piano and organ keys which is somewhat similar in itsconstruction to that `of my present invention, which will be hereinafterdescribed, and the objects of the two inventions are substantially thesame-namely, to provide a plotting or pattern-making machine for theabove-named purpose which shall be so made as to mark the boards so asto indicate where they are to be sawed to form the keys, the points forboring the same for the pins on the balance-rail, `as well as for theguide-pins near and in the heads of the keys, and also for marking andcutting slits for strips. y

Another object of the invention is to so construct the machine thatcertain parts thereof may be adjustable in order to placeindicating-marks on the boards in such a manner as to form theinnerportion of the keys when desired at the proper slant or slants orlateral inclination with respect to the outer portions thereof and tovary the location of the bores or holes for the balanceins.

Additional objects of the present invention are to increase or doublethe capacity of the machine for turning out its work and to providemeans for finishing the edges of the boards out of which the keys are tobe formed during the operation of marking the same, to furnishadjustable means for holding boards of different thicknesses on thesupportingframe, to provide means for marking 0H that portion of theboards which will form the inner parts of the keys, so that saidportions may be formed with one or more slants and enlargements.

Numerous other objects and advantages Patented Jan. 1, 1907.

of the invention will be disclosed in the subi joined description andexplanation.

The invention consists in certain peculiarities of the construction,novel arrangement, and operation of the various parts thereof, as willbe hereinafter more fully set forth and specifically claimed.

In the accompanying drawings, Figure 1 is a side view in elevation of amachine embodying the invention, showing the parts in position ready foruse and illustrating two boards -out of which the keys are to be formedin lace and being acted upon by the different e ements of the machine.Fig. 2 is a plan view thereof. Fig. 3 is an enlarged perspective view ofa portion of one side of the supporting-frame, showing a part of one ofthe movable rails thereon and an adjustable knife or cutter for breakingoff the strips sawed from the edges of the boards. Fig. 4 is a rear endview, partly 'in elevation and partly in section, taken on line 4 4 ofFig. 2 looking in the direction indicated by the arrows. Fig. 5 is anenlarged perspective view of a portion of one side of thesupporting-frame and one of the movable rails thereon, showing one ofthe adjustable antifriction-rollers carried by the former. Fig. 6 is across-sectional view of a portion of the supporting-frame, taken on line6 6 of Fig. 1 looking in the direction indicated by the arrows, showingthe saws used for trimming the edgesfof the boards mounted thereon. Fig.7 is a detail view, partly in section and partly in elevation, showingthe manner of adjustably mounting one of said saws on its shaft. Fig. 8is a detail View, partly in section, of one of the cutters used foredging the enlargements` on the inner portion of the keys. Fig. 9 is aplan view of one of the boards after it has been passed through themachine, showing it shortened for the convenience of illustration andthe indicating- IOC IIC

` rollers, showing the means for producing the patterns on the boardsmounted thereon.

Fig 12 is a plan view of a portion of the marking-band and twoadjustable bars, which carry pins or projections for marking certainportions ofthe boards, showing them detached from the marking-roller.Fig. 13 is an enlarged plan view of the outer one of said bars. Fig. 14is a longitudinal sectional view thereof. Fig. 15 is an enlarged planview of one of the inner adjustable bars. Fig. 16 isa longitudinalsectional view thereof. Fig. 17 is a greatly-enlarged plan view of aportion of one of the inner-adjustable bars, showing the pin thereof formarking the balancing-bore in position. Fig. 18 is a central sectionalview thereof. Fig. 19 is a fragmental view of one of the markingrollers,showing in section the marking-band and adjustable bars secured thereon.Fig.

20 is a perspective viewl of a portion of a filling-band for one of themarking-rollers- Fig. 21 is a plan view of a portion of one of the bandsfor the marking-rollers to which the outer adjustable bars are secured.Figs. 22 and 23 are perspective views of completed piano-keys, theformer showing al portion of the protectingestrip for the ivorycovering, which strip is partly removed yfrom its recess, and also itsinner portion enlarged and the latter showing the ivory covering inposition; and Fig. 24 is a detached perspective view of one of theadjustable cutters used 'for trimming or planing the side edges of theboards.

Like numerals of reference refer to corresponding parts throughout thedifferent views of the drawings. y

'The sides `of the main or supportingframe of the machine, which framemay be of any suitable size, form, and material, but preferablyrectangular in shape, as shown in Figs. 1, 2, and 4 of the drawings,aredesignated by the reference-numerals and are united by cross-pieces 31at or -near each of their ends. One of the sides 30 of the frame has atits upper yportion a horizontally and longitudi-v nally extending rail32 and the other side a similarly-disposed rail '33 and, as shown inFigs. 4 and 6, extend inwardly or toward-each other, so as to formledges for supporting the boards 34 out 'of which `the keys are to beformed. The upper inner portion of the rail 33 is formed with a recess35 for the purpose to 'be presently explained. vEach of the rails 32 and33 is provided at each of its ends with an upwardly-extending standard36, and

each of said standards is provided withaninturned apertured arm 37 tosupport and form `bearings for shafts 38, which are journaled in saidarms and extend across the top of the frame near each of its ends.Longitudinally j ournaled on the upper portion of the standard 36 on therail 32 is a shaft 39, which has near each of its ends a beveled gear 40and at one of its ends a hand-wheel 41 to be used for turning saidshaft. Each of the shafts 38 is provided at each of its ends with abeveled gear 42 to engage beveled gears 43 on the upper ends ofscrew-rods 44, one of which is vertically located near 4eachend of eachof the rails 32 and 33 and pass through vertical openings in theadjustable or lmovable rails 45 and 46,' which .lie longitudinally andnormally on the rails 32 and 33, .respectively. Each ofthe rails 45 and46, which form a part of the main frame, is guided in its verticalmovement by means of tongues 47 and grooves 48 on the inner surfaces ofthe uprights 36 and in the ends ofthe said rails, respectively.

The rail 32 is provided with .'a number of upwardly and inwardlyextending vbrackets 49 between its ends, on which the shaft 39 is :alsojournaled. The rail 33 is formed in its upper portion with a number ofrecesses 50, in each of which is located a movable `block 51, which isprovided on its inner end with a plate 51a, having prongs 52, (see Fig.5,) between which is vertically ,journaled anantifriction-roller 53.4Each of these blocks is ladjustably held in position by means of screwbolts 54, which pass horizontally `through the rail 33 as is clearlyshown in Figs. 2 and 5 ofthe drawings. .as the rail 33 thereunder, isprovided at about Therail 46, as well its middle with aninwardly-recessed portion .and the latter with an outwardly-extendingbracket or portion 55, in which is vertically located a block 56, Fig.4, which is adjustably held in position by means of a screw-rod 57passing through theportion 55 and engaging zsaid block. Verticallyjournaled on the yinner portion of the block 56 is a shaft 58,

lwhich carries on its upper end a circular cutter 59, which is enlargedat its middle and is 'used for beveling or curving one edge of theboards. The llower end of the shaft 58 has mounted thereon a pulley 60,around which a Vbelt 61 is passed, which also passes around a pulley 62,mounted on a shaft 63, trans- `versely journaled on the sides of themain iframe near its middle. Directly opposite the shaft 58 isvertically ournaled on the side 30 of the frame another shaft 64, on theupper end of which is mounted a circular cutter 65 to act on or planethe opposite edges ofthe boards.

The lower end of the shaft 64 has mounted thereon a pulley 66, which isgeared, by means of a belt, to another pulley 67 on the shaft 63 nearits end opposite that on which the ICO IIO

pulley 62 is mounted. Thus it will be understood that the verticalshafts 58 and 64 at the sides of the supporting-frame are driven by theshaft 63, to which power may be applied from a suitable source by meansof a belt 68 passing over a pulley 69 on said shaft. Transverselyjournaled on the lower portion of the rails 32 and 33 near their frontends is a shaft 70, on which is mounted a pulley 71, which is geared tothe pulley 69";L by means of a belt 72, thus transmitting power from theshaft 63 to the shaft 70, onwhich are mounted, near the side rails 32and 33, circular saws 73 and 74, respectiv ely. The saw 73 is preferablyrigidly mounted on the shaft 70, while the saw 74 is adjustably mountedthereon, and for this purpose a portion of the shaft 70 isscrew-threaded, as at 75, and has mounted on said portion a number ofcollars 76, Fig. 6, as well as the hub of the saw 74, so that when it isdesired to shift the position of said saw-that is, inwardly oroutwardly-so as to saw the boards in different widths it may be done byremoving the saw from the shaft and removing or placing thereon one ormore of the collars, after which the saw may be replaced on the shaftand heldin position by means of a nut 77 engaging the outerscrew-threaded portion of said shaft. The saws 73 and 74 are employed tocut the rough edges from the boards 34 and to saw it to the properwidth, so as to furnish keys of the desired length, which ,are formedtransversely with respect to said boards. Transversely journaled infront of the shaft 70 on the front portion of the movable rails 45 and46 is a shaft 7 0a, on which are mounted near its ends rollers 71a and 72a, employed to hold the boards 34 and their enlarging strips, when thelatter is used, in contact with the said saws. l

A short distance to the rear of the saw 73 the rail' 32 has' mounted onits upper surface 'a wedge-shaped knife 78, which is designed to causethe strip of wood or shaving 79 to be pressed outwardly from the saw andto be broken off, as it will be understood by reference to Fig. 2 of thedrawings. The rail 33 is provided at a point at the rear of the saw 74with a horizontal recess 80, in which is movably mounted a block 81, on'the inner portion of whlch is secured a knife or chisel 82, which is forthe same purpose as the knife 78 and is located directly behind the saw74 and may be adjusted by means of a screw-rod 83, which passes througha bracket 84 on the outer surface of the rail 33 at its recess 80, whichscrew-rod engages the movable block 81, which carries the knife 82, sothat it may be moved inwardly or outwardly, as desired, to operate on anarrow or wider board. Transversely j ournaled in the sides `of themachine near their middle, but in their lower portion, is a shaft 85, onwhich is mounted the lower marking-roller 86, which may be made of anydesired material. The shaft 85 by preference has on each of its ends a-ear 87, which meshes with gears 88, mounte on shafts 89, journaled onthe sides of the frame above the shaft 85, which latter gears mesh withgears 90, one of which is by preference journaled on shafts 91,adjustably mounted, by means of a sliding box 92, on anupwardlyextending bracket 93, secured to the rails 45 and 46 near theirmiddle portions. Transversely journaled on the upper portion of thebrackets 93 is a shaft 94, on which the upper marking-roller 95 ismounted. This shaft by preference has on each of its ends a gear 96 tomesh with the gears 90, so as to impart motion to the uppermarking-roller.

The gears 87 on the `shaft 85 also mesh with gears 97, journaled on eachside of the frame, which in turn mesh with gears 98 on the driving-shaft99, which is transversely journaled on the rear portion of the frame andmay be driven by means of power applied to it throu, Ih a belt 100passing over a pulley 101 on the driving-shaft, thus imparting rotarymotion to the lower and upper markingrollers 86 and 95, respectively,through the instrumentality of the chain of gears just above mentioned.It is evident that said gears on one side of the frame may be omitted;but I prefer to use them on both sides in order to attain a more uniformpressure of the marking-rollers on the boards as they pass between thesame. Transversely journaled on the upper front portion of the rails 45and 46, at the rear of the saws 73 and 74, but in front of themarking-rollers, is a shaft 102, on which is mounted the uppercompression or feed roller 103, which is formed with a reduced portion104, extending from one of its ends inwardly a suitable distance.Mounted on one end of the shaft 102 is a gear 105, which is in mesh withan idle gear 106 on a shaft 107, journaled in a sliding box 108 on theupper portion of the rail 45. The idler 106 meshes with another gear 109on a shaft 110, journaled below the shaft 107, which latter gear alsomeshes with a gear 111, journaled between the shafts 110 and 89, whichin its turn meshes with the gear 88, as\is clearly shown in Fig. 1 ofthe drawings. Transversely liournaled on the-sides of the frame directlybelow the shaft 102 is a shaft 112, on which is mounted the lowercompression or feed roller 113, which is of similar construction and thesame size as the roller 103, and for this reason it is not deemednecessary to show the lower roller in detail. Mounted on one end of theshaft 112 and engaging the gear 109 is a gear 114, which completes thechain of gearing foroperating the feed-rollers 103 and 113, which arelocated sufficiently far enough apart to permit the boards 34 to passbetween them.

It will be noted that the rails 45 and 46 carry the shafts 70a, 91, 94,102, and 107 and IOO llO

that the other shafts are journaled on' the stationary part of theframe. As the thicknesses of the boards 34, which are laid one on theother, as shown, will vary slightly, it becomes necessary that one ofthe feedrollers and one of the markingrollers shall be adjustablymounted, and it is for this reason that the rails 45 and 46 are providedwith means for raising and lowering them in a slight degree, which isdone by turning the shaft 39 by means of the hand-wheel 41, whichoperation will, through the beveled gears 40 and 42 on :the shafts 39and 38, respectively, and the gears 43 on the screw-rods 44, cause therails to be slightly raised or'lowered, as desired. The necessarymovement of these rails isbut slight, and the arrangement of the gears40, 42, and 43 will permit it; but in said movement the gears 90 and 106would also be moved, and for this reason their shafts 91 and 107 arejournaled in the adjustable or sliding boxes 92 and 108, so that theymay be properly adjusted to hold them in mesh with their intermeshinggears. Transversely journaled on the upper portion of the rails and 46at a distance to the rear of the marking-rollers is a shaft 115, onwhich is mounted near the rail 45 and at a slight distance apart twocircular saws 116, used for cutting the slits in the upper surface ofthe upper board. Di rectly under the shaft 115 each of the rails 32 and33 yis provided with a hanger 117, in each of which is located a slidingjournal-box 11S, which can be moved within the bracket by means ofscrew-bolts 119, which pass through the ends of the bracket and engagesaid journal-box.

Transversely j ournaled in said journalboxes and extending across theframe is a shaft 120, on which are mounted directly beneath the saws 116two circular saws 121, which are employed to form the parallel slits inthe lower surface of the lo Wer board. The shaft 120 is driven by meansof a belt 1.22, which passes over pulleys on said shaft and thedriving-shaft 99, as will be readilv understood by reference to Fig. 1of the drawings.- The shaft 115 is geared to the shaft 120 by means of abelt 123 and is thereby driven. Transversely journaled on the rails 45and 46, at the rear of the shaft 115, is a shaft 124which is geared tothe shaft 115 by means of a belt 125. Directly below the shaft 124another shaft 126 is transversely journaled on the rails 32 and 33 andis driven by means of a belt 127, connecting said shaft to the shaft120. Adjustably mounted on each of the shafts 124 and 126, at a suitablepoint near the rails 33 and 46 by means of sliding collars 123, is acutter 129, which is interposed between said collars and is employed tofinish or form a suitable edge on the enlarged inner portion of theboards when it is desired to provide the same with such enlargements.Vertically journaled at suitable distances apart on the inner surface ofthe rail 32 are a series of antifriction-rollers 53a, which are employedin conjunction with the rollers 53 on the opposite side of the frame tofacilitate the passage of the boards 34 and to guide them in theirpassage along the upper portion of the main frame.

The upper feed-roller 103 and lower feedroller 113 are of the sameconstruction and preferably the same size, and the same may be said ofthe upper marking-roller 95 and the lower one 86, and by reference toFigs. 2, 4, and 19 of the drawings it will be seen and understood thateach of the feed-rollers has a reduced portion 104 and that each of themarking-rollers has a reduced portion 130 to permit of the reception andpassage of strips 34a, secured to the boards 34 by means of glue orotherwise, on the upper surface of one of said boards and on thelowersurface of the other when it is desired to form the keys withenlargements on 'their inner portions, as shown in Fig. 22, by whichismeant that portion of the keys which extends within the piano-casing andengages the action of the instrument. If it is desired to produce keysof the same thickness throughout its entire length, as shown in Fig. 23,the reduced portions 104 in the feed-rollers and the like portion 130 inthe marking-rollers may be filled, so as to be flush with the enlargedportion of said rollers, by means of a filling-band 131, (see Fig. 20)of .any suitable material, which may be secured circumferentially aroundsaid reduced portions in any desired manner.

Rigidly secured to the periphery of each of the marking-rollers by meansof screws 132 (see Fig. 11) or otherwise is a marking-band 133, which bypreference entirely surrounds said roller and extends from one of itsends inwardly thereon to a suflicient distance to produce marks orpatterns for 'forming the heads or outer portions of the keys, whichwhen in place on the piano are exposed yor outside of the piano-casing.The band 133 is provided on its outer surface with a series of pointedpins 134, arranged in a `row circumferentially around the band :near itsouter edge to produce marks or indentations 135, Figs. 9 and 10, toindicate Where the heads of the natural keys 136 are to be bored for thereception of the guide-pins ltherefor, and said `band is also providedwith a series of pointed pins 137 in a circumferential row around theband to produce marks or indentations 138 to indicate the points'atwhich the Sharps and flats 139 are to be bored for the reception of theguide-pins therefor. The band 133 is also provided with a series ofpointed pins 140, arranged in transverse rows across the band to formmarks or indentations 141 on the board 34 to indicate the lines on whichthe same is to ybe sawed in order to form the heads of the natural keys136 and of the Sharps and Hats.

IOC

ILO

Pivotally secured to the roller near the inner edge of the band 133 area series of ad- "its middle with an elongated opening 145 therein, whichopening has at about the middle of its perimeter an inwardly-extendingledge 146, which provides an upper and lower countersunk opening 147 and148, respectively, on the movable pin 151, one of which is located ineach of the openings 145 of each of the adjustable bars, each ofwhichhasnear its other end a transverse slot 152 to receive a securing pin orscrew 153, which passes through said slots and engages the roller. Eachof the bars 142 has near one of its edges a series of pins 154, employedto form marks or indentations 155, arranged in transverse rows on theboard 34 to indicate the lines on which it is to be sawed to produce theinner portion of the key, or'that portion thereof which lies within thepiano-casing, the kerfs of the saw being indicated by the lines 156 inFigs. 9 and 10 of the drawings. Each of the bars 142 is also provided onits outer surface with dies 157 to produce numbers 158, runningnumerically from 1 to 88, or to represent the number of keys to be madefor the instrument. The pins 151 are adjust- 'ably located in theopenings 145 by means of the flanges 149 and nut 150 and are employed toproduce the marks or indentations 159 in the board 34 for the receptionofthe pins on the balance-rail.

By pivotally securing the bars 142 at one of their ends to the roller itis evident that said bars may be arranged at the proper slant orinclination to the edge of the band 133, so that the board 34 will bemarked by means of the pins on said bars in such a manner that the innerportion of the keys may be formed at the desired slant or inclination orin alinement with their outer portions, for it will be understood thatin some instruments some of the keys are more or less inclined at theirinner portions and in other instruments some of the keys are straight,while others are inclined.

` As before stated, it is sometimes desirable to provide the keys 160with an enlargement 161 on their inner portions, as shown in Fig. 22 ofthe drawings, and it is for this reason the feed-rollers andmarking-rollers are provided with correspondingly-reduced portions 104and 130 at one of their ends, so as to permit the boards, which may havestrips 34a glued or secured thereto, to pass between said rollers, andin order to mark said enlarged portions of the boards a band 162 is therollers.

secured circumferentially on the reduced portion of each of themarking-rollers by means of screws 163, which pass throughtransversely-elongated openings 164, which will permit of the lateraladjustment of the band 162 on the reduced portion of each of Pivotallysecured at their inner ends to the band 162 near its inner edge are aseries of adjustable bars 165, each of which is provided at one of itsedges with pointed pins 166, employedA to form indentations or marks167, arranged in transverse rows on the board to indicate the lines onwhich it is to be sawed to produce the inner or enlarged portion of thekey, the kerfs of the saw being indicated by the lines 156 in Figs. 9and 10 of the drawings. Each of the bars 165 is provided with transverseand slightly-curved openings 168 to receive screws 169, which engageopenings 17 0 in the band 162 therefor. By providing the bars 165 withthe transverse openings 168 it is apparent that they may be turned ontheir pivots so as to give the enlarged portion 161 of the keys adifferent inclination when desired from that marked off by theadjustable bars 142, which, as shown, are located between the inner edgeof the band 133 and the inner edge of the band 162 on the reducedportions of the marking-rollers.

As shown in Figs. 4, 5, and 6 of the drawings, the rails 32 and 33 haveon their inner surfaces longitudinally-extending recesses 35, producedon the rail 32 by means of a horizontal and inwardly-extending rib orcleat 32a and on the rail 33 by means of an inwardly-extending portion33, to the inner surface of which is adjustably secured asupporting-plate 36a, which is provided with a number of slots 37a toreceive bolts 38a,which are secured to the rail 33 and extend throughsaid slots, the said plate being held in position by means of nuts 39a,engaging said bolts. This adjustable plate is employed so that it may beraised on the rail 33 to support the boards 34 when keys are to be madewithout the enlargements 161 ontheir inner ends and to be lowered onsaid rail when keys are to be made with such enlargements, thus in thelatter case permitting the strips 34a on the boards 34 to be properlysupported.

On each of the shafts 115 and 120, at the rear of the marking-rollersand directly in front of the cutters 129 on the shafts 124 and 126, ismounted a circular saw 171, which is used for the purpose of trimmingther inner edges of the strips 348L before said edges are passed to thesaid cutters. Transversely journaled on the rails 32 and 33 at the rearof the marking-rollers is a shaft 172, on which is mounted a number ofrollers 173 to impinge the upper surface of the upper board 34, andtransversely journaled directly beneath the shaft 172 is another shaft174, on which is mounted a number of rollers 175 to rest IOO IIO

ISO

' parts of-said rollers.

against the lower surface of the lower board 34, thus holding the upperand lower boards together and properly presenting them to the saws onthe shafts 115 and 120, so that said boards may be formed with kerfs 176in order that the slits 177 for the strips 178 may be formed.

From the foregoing and by reference to the drawings it will be clearlyunderstood and readily seen that by employing a machine constructedaccording to my present invention two boards may be simultaneouslymarkedor laid off with patterns so that the keys may be produced andproperly bored and that in said operation the edges of certain parts ofthe boards will be treated or finished, thus greatly increasing thecapacity of the machine and reducing the amount of manual labor requiredin the manufacture of keys for pianos and the like. It will beunderstood that the peripheral reduction on the marking and feed rollersis very slight and that the difference in the distance traveled bytheenlarged portions and reduced portions of said rollers is so smallthat it will not affect the operation of the machine; but of course itwill be necessary to place the marking devices on the reduced portions alittle closer together in transverse rows than those in the transverserows on the enlarged However, this will not e discernible to the nakedeye, for in ractice the difference will only amount to a outone-eightieth of an inch in the circumference of the rollers.

What I claim is- 1. In a machine of the character described, thecombination with the main frame, of a pair of marking-rollerstransversely journaled in parallelism, means to rotate said rollers,marking devices arranged on the periphery of each of the rollers incircumferential and transverse rows to form marks or indented patternson boards to indicate where they are to be sawed and bored to formkeysvfor a piano or organ, some of the transverse rows of the markingdevices being arranged out of alinement with thevother rows thereof,substantially as described.

2. In a machine of the character described, the combination with themain frame, of a series of antifriction -rollers vertically journaled onits side rails, a pair of feed-rollers transversely journaled, a pair ofmarkingrollers transversely journaled in parallelism, means to rotatesaid rollers, marking devices arranged on the periphery of each of themarking-rollers in circumferential and trans- .verse rows to form marksor indented patterns on boards to indicate where they are to be sawedand bored to form keys'for a piano or organ, some of the transverse rowsof the marking devices being located out of alinement with the othertransverse rows thereof, substantially as described.

3. In a machine of the character described, the combination with themain frame, of a series of antifriction rollers vertically journaled onone of its side rails, a series of antifriction-rollers verticallyjournaled and adjustably mounted on the other side rail ofthe frame, apair of marking-rollers transversely journaled in parallelism, means torotate said rollers, marking devices arranged on the periphery of eachof the rollers in circumferential and transverse rows to form marks orindented patterns on boards to indicate where they are to be sawed andbored to form keys for a piano or organ, some of the transverse rowsofthe marking devices being arranged out of alinement with the otherrows thereof, substantially as described.

4. In a machine of the character described, the combination with themain frame, of a series of antifriction -rollers vertically journaled onone of its side rails, a series of antifriction-rollers verticallyjournaled and adjustably mounted on the other side rail of the frame, avpair of marking-rollers transversely journaled in parallelism, means torotate said rollers, marking devices arranged on the periphery of eachof the rollers infcircumferential and transverse rows to form marks orindented patterns on boards to indicate where they are to be sawed andbored to form keys for a piano or organ, substantially as described.

5. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers transversely journaled inparallelism, each of said rollers peripherally reduced from one of itsends inwardly, means to rotate said rollers, marking devices arranged onthe periphery of each of the rollers in circumferential and transverserows to form marks or indented patterns on boards to indicate where theyare to be sawed and bored to form keys for a organ, substantially asdescribed.

6. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers transversely journaled inparallelism, each of said `rollers peripherally reduced from one of itsends inwardly, means to rotate said rollers, marking devices arranged onthe periphery of each of the rollers in circumferential and transverserows to form marks or indented patterns on boards to indicate where theyare to be sawed and bored to form keys for a piano or organ, some of thetransverse rows of the marking devices being arranged out of aline- 'roopiano or IIO ment with the other rows thereof, subst-antially asdescribed.

7. In a machine of the character described, the combination with themain frame, of a series of antifriction-rollers vertically journaled onits side rails, a pair of feed-rollers transversely j ournaled on themain frame, a pair of marking-rollers transversely jourcumferential andtransverse rows te form marks or indented patterns on boards to indicatewhere they are to be sawed and bored to form keys for a piano or organ,substantially as described. i

8. In a machine of the character described, the combination with themain frame, of a series of antifriction-rollers vertically journaled onits side rails, a pair of feed-rollers transversely journaled on themain frame, a pair of marking-rollers transversely journaled inlparallelism on the frame near the feed-rollers, each of the feed-rollersand each of the marking-rollers having peripherallyreduced portionsextending from one of their ends inwardly, means to rotate all of saidrollers, marking devices arranged on the periphery of each of themarking-rollers in circumferential and transverse rows to form marks orindented patterns on boards to indicate where they are to be sawed andbored to form keys for a piano or organ, some of the transverse rows ofthe marking devices being located out of alinement with the othertransverse rows thereof, substantially as described.

9. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers transversely journaled thereonin parallelism, means to rotate said rollers, marking devices arrangedon the periphery of each of the rollers in circumferential andtransverse rows to f orm marks or indented patterns on boards toindicate where they are to be sawed and bored to form keys for a pianoor organ, a shaft transversely journaled on the main frame at the rearof the marking-rollers, a pair of circular saws mounted in parallelismon said shaft to forin longitudinal slits in one of the boards,substantially as described.

10. In a machine of the character described, the combination `With themain frame, of a pair of marking-rollers transversely journaled thereonin parallelism, marking devices arranged on the periphery of each of therollers in circumferential and transverse rows, two shafts transverselyjournaled one above the other on the frame at the rear of themarking-rollers, a pair of circular saws mounted in parallelism on eachof said shafts to formlongitudinal slits in the boards, substantially asdescribed.

11. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers transversely journaled thereon,each of said rollers peripherally reduced from one of its ends inwardly,marking devices arranged on the periphery of each of the rollers incircumferential and transverse rows, a shaft transversely j ournaled onthe main frame at the rear of the marking-rollers, and a circular cuttermounted on said shaft at a point in the rear of the inner portion ofthereduced part of one of the marking-rollers, substantially as described.

12. In a machine of the character described; the combination with themain frame, of a pair of marking-rollers transversely j ournaledthereon, each of said rollers peripherally reduced from one of its endsinwardly, marking devices arranged on the periphery of each of therollers in circumferential and transverse rows, two shafts transverselyjournaled one above the other on the main frame at the rear of themarking-rollers, and a circular cutter mounted on each of said shafts ata point in the rear of the inner portion of the reduced parts of themarkingrollers, substantially as described.

13. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers `transversely journaled thereonin arallelism, each of said rollers peripheral y reduced from one of itsends inwardly, marking devices arranged on the periphery of each of therollers in circumferential and transverse rows, two shafts transverselyj ournaled one above the' other on the main frame at the rear of themarking-rollers, a circular cutter mounted 0n each of said shafts nearone of its ends, two other shafts transversely journaled one above theother on the main frame between the first-named shafts and themarking-rollers, and a circular saw mounted on each of said shaftsdirectly in front of said circular cutters, substantially as described.

14. In a Vmachine of the character described, the combination with themain frame, of a pair offeed-rollers transversely journaled on the mainframe, a pair of marking-rollers transversely journaled in parallelismon the frame near the feed-rollers, marking devices arranged on theperiphery of each of the `marking-rollers in circumferential andtransverse rows to form marks or indented patterns on boards to indicatewhere they are to be sawed and bored to form keys for a piano or organ,and means on the main frame to raise and lower the upper feed andmarkingrollers, substantially as described.

15. In a machine of the character described, the combination with themain frame, of a pair of feed-rollers transversely j'ournaled thereon, apair of marking-rollers transversely journaled on the frame near thefeed-rollers, each of the feed-rollers and each of the marking-rollershaving peri pherally-reduced portions extending from one of their endsinwardly, marking devices arranged on the periphery of each of themarking-rollers IOO IOS

IIO

i scribed, the combination with a main frame having two stationary siderails, of a rail movably and longitudinally mounted on each ofsaid siderails, a screw-rod vertically located at eachend of each of the movablerails and engaging the same as well as the stationary side rails, abeveled gear on the upper end ofeach of said rods, a shaft transverselyand horizontallyj ournaled at each end of the main frame, a beveled gearon each end of each of said shafts to mesh with the gears on thescrew-rods, a shaft longitudinally journaled on one side of the mainframe, a beveled gear mounted on said shaft near each of its ends toengage the gears on the screw-rods on one side of the frame, and meansto turn the lastnamed shaft, substantially as described;

17. In a machine of the character described, the combination with a mainframe having two stationary side rails, of a rail movably andlongitudinally mounted on each of said side rails, a screw-rodvertically located at each end of each of the movable rails and engagingthe same as well as the stationary side rails, a beveled gear on theupper end of each of said rods, a shaft transversely and horizontallyournaled at each end of the main frame, a beveled gear on each end ofeach of said shafts to mesh with the gears on the screw-rods, a shaftlongitudinally journaled on one side of the main frame, a beveled gearmounted on said shaft near each of its ends to engage the gears on thescrew-rods on one side of the frame, means to turn the last -namedshaft, a lower marking roller transversely ournaled on the stationarypart of the main frame, an upper marking-roller transversely ournaled onthe movable rails, marking devices arranged on the periphery of each ofthe marking-rollers in circumferential and transverse rows to form marksor indented patterns on boards, substantially as described. p

18. In a machine of the character described, the combination with a mainframe having two stationary side rails, of a rail movably andlongitudinally mounted on each of said side rails, a screw-rodvertically located at each end of each of the movable rails and engagingthe same as well as the stationary side rails, a beveled'gear on theupper end of each of said rods, a shaft transversely and horizontallyjournaled at each end of the main frame, ya beveled gear on each end ofeach of said shafts to mesh with the gears on the screw-rods, a shaftlongitudinally journaled on one side of the main frame, a beveled gearmounted on said shaft near each of its ends to engage'the gears on thescrewrods 'on one side of the frame, means to turn the last-named shaft,a lower feed-roller transversely journaled on the stationary part of theframe, anupper feed -roller transversely journaled on the movable railsabove said lower roller, a lower marking-roller transversely journaledon the stationary part of the frame, an upper marking-rollertransversely journaled on the movable rails above the lowermarking-roller, each of the feedrollers and each of themarking-rollershaving peripherally-reduced portions extending from one of their endsinwardly, marking devices arranged on the periphery of each of themarking-rollers in circumferential and transverse rows to form marks orindented patterns on boards, substantially as described.

19. In a machine of the character de- I scribed, the combination with amain frame having two stationary side rails, of a rail movably andlongitudinally mounted on each of said side rails, a screw-rodvertically located p at each end of each of the movable rails andengaging the same as well as the stationary side rails, a beveled gearon the upper end of each of said rods, a shaft transversely andhorizontally journaled at each end of the main frame, a beveled gear oneach end of each of said shafts to mesh with-the gears on thescrew-rods, a shaft longitudinally journaled on one side of the mainframe, a beveled gear mounted on said shaft near each of its ends toengage the gears on the screw-rods on one side of the frame, means toturn the last-named shaft, a lower feed-roller transversely journaled onthe stationary part of the frame, an upper feed-roller transverselyjournaled on the movable rails above said lower roller, a lowermarking-roller transversely journaled on the stationary part of the"frame, an upper marking-roller transversely journale'd on themovablerails above the lower marking-roller, each of the feedrollers andeach of the marking-rollers having peripherally-reduced portionsextending from one of their ends inwardly, marking devices arranged onthe periphery of each of the marking-rollers in circumferential andtransverse rows to form marks or indented patterns on boardstwo shaftstransversely journaled one above the other on the frame at the rear ofthe marking-rollers, one of said shafts being journaled on thestationary part of the frame and the other on the movable rails thereof,and a circular cutter mounted on each of said shafts near one of itsends, substantially as described.

20. ln a machine of the character described, the combination with themain frame, of a pair of marking-rollers transversely j ournaled thereonin parallelism, means to rotate said rollers, a band rigidly secured onthe periphery of each of the rollers at one of its ends and havingmarking devices arranged thereon in circumferential IOO IIC

and transverse rows, a series of bars located scribed, the combinationwith the main frame, of a pair of marking-rollers transversely journaledthereon one above the other, each of said rollers peripherally reducedfrom one of its ends inwardly, a band rigidly secured on the peripheryof each of the rollers at one of its ends and having marking devicesarranged thereon in circumferential and transverse rows, a series ofbars located transversely on the periphery of each ofthe rollers andadjustably secured thereon, each of said bars having a series of pointedpins at one of its edges, and a pointed pin adjustably secured to eachof said bars at about its middle, substantially as described.

22. In a machine of the character described, the combination with themain frame, of a pair of marking-rollers trans- `versely journaledthereon one above the other, each of said rollers peripherally reducedfrom on'e of its ends inwardly, a band rigidly secured on the peripheryof each of the rollers at one of its ends and having marking devicesarranged thereon in circumferential and transverse rows, a series ofbars located transversely on the periphery of the enlarged part of eachof the rollers and adjustably secured thereon, each of said bars havinga series of pointed pins at one of its edges, and a pointed pinadjustably secured to each of said bars at about its middle,substantially as described.

23. In a machine of the character de' scribed, the combination with themain frame, of a pair of marking-rollers transversely journaled thereonone above the other, each of said rollers peripherally reduced from oneof its ends inwardly, a band rigidly secured on the periphery ci each ofthe rollers at its enlarged end and having marking devices arrangedthereon in circum-,

ferential and transverse rows, a series of bars located transversely onthe peripherally-enlarged portion of each of the rollers and adjustablysecured thereon, each of said bars having a series of pointed pins atone of its edges and a pointed pin adjustably secured to each of saidbars at about its middle, a series oi bars transversely and adjustablymounted on the peripherally-reduced portion of each of said rollers,eachof the lastnamed bars having a series of pointed pins as one oftheir edges, substantially as described.

24. In a machine of the lcharacter described, the combination with themain frame, of a pair of feed-rollers transversely journaled thereon oneabove the other, apair of marking-rollers transversely journaled on theframe one above the other, each of the feed-rollers and each of themarking-rollers peripherally reduced from one of its ends inwardly, aband rigidly secured on the periphery of each of the marking-rollers atits enlarged end and having marking devices arranged thereon incircumferential and transverse rows, a series of barslocatedtransversely on the periphery of each ofthe marking-rollers andadjustably secured thereon, each of said bars having a series of pointedpins at one oi its edges, and a pointed pin adjustably secured to eachof said bars at about its middle, substantially as described.

25. In a machine of the character de-v scribed, the combination with themain frame, of a pair of Jfeed-rollers transversely journaled thereonone above the other, a

pair of marking rollers transversely jour-v naled on the frame one abovethe other, each of the feed-rollers and each of the marking-4 rollersperipherally reduced from one of its ends inwardly, a band rigidlysecured on the periphery oi each of the marking-rollers at' its enlargedend and having marking devices arranged thereon in circumferential andtransverse rows, a series of bars located transversely on theperipherally enlarged portion of each of the marking-rollers andadjustably secured thereon, each of said bars having a series of pointedpins at one of its edges and a pointed pin adjustably secured to each ofsaid bars at about its middle, an-

other series of bars located transversely on the peripherally-reducedportion of each of' 'the marking-rollers and adjustably secured thereon,each of the last-named bars having a series of pointed pins at one ofits edges, substantially as described.

26. In a machine of the character described, the combination with themain frame, oit' a pair of marking-rollers transversely journaledthereon one above the other, each of said rollers peripherally reducedfrom one of its ends inwardly, marking devices arranged on the eripheryof each of the rollers in circumflerential land transverse rows, twopairs of circular saws journaled in parallelism one pair above the otheron the main frame at the rear of the marking rollers, and means to holdthe boards against said saws, substantially as described.

PHILIP SCHNEIDER.

IIO

